Radian Measure
What is 1 radian?
In angles if π is in the value it is considered to be in radians even without the symbol
Swapping between degrees and radians
To go from radians to degrees
multiply by 180 π To go from degrees to radians multiply by π 180 |
A way to remember is the value you want to go to is the one on top of the fraction. For example to go to degrees you want the 180 on top |
Radians and Circles
Your calculator needs to be in radians